<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="新闻标题" prop="title">
        <el-input
            v-model="queryParams.title"
            placeholder="请输入新闻标题"
            clearable
            @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="新闻分类" prop="type">
        <el-select v-model="queryParams.type" placeholder="请选择新闻分类" clearable style="width: 200px;">
          <el-option
              v-for="dict in news_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="Plus"
            @click="handleAdd"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="Edit"
            :disabled="single"
            @click="handleUpdate"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="Delete"
            :disabled="multiple"
            @click="handleDelete"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="warning"
            plain
            icon="Download"
            @click="handleExport"
        >导出
        </el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="newsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="新闻唯一标识ID" align="center" prop="newsId"/>
      <el-table-column label="新闻标题" align="center" prop="title"/>
      <!--<el-table-column label="新闻正文内容" align="center" prop="content" />-->
      <el-table-column label="新闻分类" align="center" prop="type">
        <template #default="scope">
          <dict-tag :options="news_type" :value="scope.row.type"/>
        </template>
      </el-table-column>
      <el-table-column label="原文链接" align="center" prop="sourceUrl"/>
      <el-table-column label="封面图URL" align="center" prop="coverImage" width="100">
        <template #default="scope">
          <image-preview :src="scope.row.coverImage" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="摘要" align="center" prop="summary"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)">修改</el-button>
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
    />

    <!-- 添加或修改心理健康新闻快讯对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="newsRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="新闻标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入新闻标题"/>
        </el-form-item>
        <el-form-item label="新闻正文内容">
          <editor v-model="form.content" :min-height="192"/>
        </el-form-item>
        <el-form-item label="新闻分类" prop="type">
          <el-select v-model="form.type" placeholder="请选择新闻分类">
            <el-option
                v-for="dict in news_type"
                :key="dict.value"
                :label="dict.label"
                :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="原文链接" prop="sourceUrl">
          <el-input v-model="form.sourceUrl" placeholder="请输入原文链接"/>
        </el-form-item>
        <el-form-item label="封面图URL" prop="coverImage">
          <image-upload v-model="form.coverImage"/>
        </el-form-item>
        <el-form-item label="摘要" prop="summary">
          <el-input v-model="form.summary" placeholder="请输入摘要"/>
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="News">
import {listNews, getNews, delNews, addNews, updateNews} from "@/api/news/news";

const {proxy} = getCurrentInstance();
const {news_type} = proxy.useDict('news_type');

const newsList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    title: null,
    type: null,
  },
  rules: {
    title: [
      {required: true, message: "新闻标题不能为空", trigger: "blur"}
    ],
    content: [
      {required: true, message: "新闻正文内容不能为空", trigger: "blur"}
    ],
    type: [
      {required: true, message: "新闻分类不能为空", trigger: "change"}
    ],
    summary: [
      {required: true, message: "摘要不能为空", trigger: "blur"}
    ],
  }
});

const {queryParams, form, rules} = toRefs(data);

/** 查询心理健康新闻快讯列表 */
function getList() {
  loading.value = true;
  listNews(queryParams.value).then(response => {
    newsList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    newsId: null,
    title: null,
    content: null,
    type: null,
    sourceUrl: null,
    coverImage: null,
    summary: null,
    createBy: null,
    createTime: null,
    updateBy: null,
    updateTime: null,
    delFlag: null
  };
  proxy.resetForm("newsRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.newsId);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加心理健康新闻快讯";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _newsId = row.newsId || ids.value
  getNews(_newsId).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改心理健康新闻快讯";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["newsRef"].validate(valid => {
    if (valid) {
      if (form.value.newsId != null) {
        updateNews(form.value).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addNews(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _newsIds = row.newsId || ids.value;
  proxy.$modal.confirm('是否确认删除心理健康新闻快讯编号为"' + _newsIds + '"的数据项？').then(function () {
    return delNews(_newsIds);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => {
  });
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('news/news/export', {
    ...queryParams.value
  }, `news_${new Date().getTime()}.xlsx`)
}

getList();
</script>
